Pick



Dec. 9, 1941. J. SERGE 2,265,580

4 PICK Filed Feb. 18, 1941 Inventor 2/1 0 f e ye Attorney Patented Dec. 9, 1941 PICK Diego J. Serge, Bluefield, W. Va., assignor of fifty per cent to Anthony Musci, Bluefield, W. Va.

Application February 18, 1941, Serial No. 379,511

1 Claim.

This invention relates to new and useful improvements in picks of the type wherein the points must necessarily be kept quite sharp, and more particularly to a pick of the detachable point type.

The principal object of the present invention is to provide a pick having a detachable point wherein the point and pick head are so constructed as to permit attachment of the pick point quickly and accurately without any chance of mis-alignment of the point with the pick head.

Another important object of the invention is to provide a pick of the detachable point type wherein means is provided for quickly releasing the point for the purpose of carrying the point separately from the pick proper or when sharpening of the point becomes necessary.

Other objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawing:

Figure 1 represents a longitudinal sectional view through a pick head showing one point in section and the other point in elevation and showing a slip or wedge about to release the latter point.

Figure 2 is a front elevational view of the pick fragmentarily shown and partly in section.

Figure 3 is a fragmentary side elevational view of one of the points.

Figure 4 is a cross sectional view on the line 44 of Figure 1.

Referring to the drawing wherein like numerals designate like parts, it can be seen that numeral 5 denotes a pick head having a handle socket 6 at its intermediate portion and a substantially long inwardly tapering bore I at each end thereof, these bores being of round cross section. The pick head 5 at each side of the socket 6 and adjacent the inner ends of the bores I is formed with passageways 8 through which slips or wedges 9 can be driven. The inner ends of the bores 1 communicate with the passageways 8 by way of narrow slots H] of substantial oblong shape in cross section.

Numeral ll denotes one of the pick points which is longitudinally arcuate in shape, the head portion of the point being of substantially square shape in cross section while a reduced shank l2 extending therefrom is of round cross section and tapered longitudinally to bind in the corresponding bore 1.

As can be seen in Figures 1, 3 and 4, the free end of the shank I2 is provided with a reduced tang l3 of oblong cross section adapted to project through the slot 1 0 which communicates the bore 1 with the corresponding passageway 8. When the point is to be attached, the shank I2 is disposed into the bore 1 until the tang I3 reaches the bottom thereof and by slightly oscillating the pick point the tang I3 will match the slot I0, penetrate the same and the pick point can no longer be rotated but will remain properly aligned with the pick head 5 and as the pick point is used, action of the same against the work will only serve to more tightly fit the shank [2 with respect to the bore 1.

However, when it is desired to remove the point, all that is necessary is to drive a slip or wedge 9 in the passageway 8 and against the protruding tang l3. This will dislodge the shank I2 and permit the point II to be entirely removed from the pick head.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be restorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is:

In a pick structure, a head having a handle socket, said head having a tapered bore of circular cross section extending inwardly from one end, said head having a transversely extending tool admission passageway therein and slightly inwardly from the inner end of the tapered bore, a pick point having a taper of circular cross section for uniform wedge engagement in the bore, said pick head having a non-circular slot extending from the inner end of the bore to the transverse passageway, said pick point having a reduced non-circular tang for loose disposition through the slot, said tang being of suflicient length to project into the passageway when the shank is fitted into the bore, said slot and tang being of dimensions and construction to prevent rotation of the tang in the slot.

DIEGO J. SERGE. 

